I'm shopping the 8800s and I've noticed that all of the power cables that are provided with the cards are 2 molexes that join to a male PCI-E connector.

In that circumstance, I would need 4!! molexes to run 1 card.

I have two PCI-E cables on a dedicated rail on my PSU, so I'd have no problem running 1 card using those but, if I wanted to run 2 8800s I would need to use the 4 molexes PLUS the 2 PCI-Es.

I'm just wondering if there's an adapter that would split my two PCI-E cables so I could run an SLi setup of 8800s using just my PCI-E connectors.



I hope that made sense.


Thanks!!

Here would be my first question......

What power supply do you have.....What's the max watts and is it single rail or multi-rail?

Im quite anal when it comes down to building systems. Using the term (jimmy rig) it to work. Isnt always the best option. It may cause you more turmoil in the long run trying to figure out why your system runs like crud or reboots at the drop of a hat. Since your looking at building a system with two gtx's. Can your current power supply put out the juice to run these two cards. If your going to need all these extra molex connectors to power up another card. I cant guarantee your system is going to run stable.

I personally would look into purchasing a new power supply that can handle the power requirements you need. Then again a single 8800gtx alone devours everything you throw at it. So in my opinion having two in SLI is just plain overkill. I would just save your money on the second card. Im sure by this time next year there will be a card that will smoke two of these cards in sli.

Then again that's just my opinion.

All in All, its of course your choice and your money spent.

There fine... Aslong as you do mean 2x Molex to 1 PCI-E. Some are 1x Molex to 1 PCI-E and another Molex, and I'm not sure if I'd trust one of those.

Quote: Originally Posted by Rockin'male Here would be my first question...... What power supply do you have.....What's the max watts and is it single rail or multi-rail? Im quite anal when it comes down to building systems. Using the term (jimmy rig) it to work. Isnt always the best option. It may cause you more turmoil in the long run trying to figure out why your system runs like crud or reboots at the drop of a hat. Since your looking at building a system with two gtx's. Can your current power supply put out the juice to run these two cards. If your going to need all these extra molex connectors to power up another card. I cant guarantee your system is going to run stable. I personally would look into purchasing a new power supply that can handle the power requirements you need. Then again a single 8800gtx alone devours everything you throw at it. So in my opinion having two in SLI is just plain overkill. I would just save your money on the second card. Im sure by this time next year there will be a card that will smoke two of these cards in sli. Then again that's just my opinion. All in All, its of course your choice and your money spent.

Thanks for the reply!! I appreciate the input and advice

I've got the OCZ GameXStream 850W. It has 20A on the Rail dedicated to the PCI-E connectors.

I realize two 8800GTXs would be unnecessary. My question was mostly academic, just to see if the adapter actually existed.

Regardless, I'm now seeing that the 9800s will be released this autumn, so your statement at the end is quite appropriate.

Thanks again for the reply.

8800 suck alot of juice but what kind of consumption are we talking about, I have a SILENCER® 750 QUAD from PC Power and Cooling. I've herd it said its dam near an 850 watt power supply. Is that enough power? I was thinking the Zalman bay device that actualy tells you the power consumption.

Esentualy Just asking the same question about a differnet PSU.

EDIT: I have seen the cable your talking about but It's said it may damage your card.

The PSU is mulirail Mulirail = Crap for high end video cards

Quote: Originally Posted by killert The PSU is mulirail Mulirail = Crap for high end video cards

I hope your not talking about the Silencer 750 Quad

Quote: ARE MULTIPLE 12-VOLT RAILS BETTER THAN A SINGLE 12-VOLT RAIL? With all the hype about multiple 12-volt rails (ads claim that two rails is better than one, five is better than four, etc.), you’d think it was a better design. Unfortunately, it’s not! Here are the facts: A large, single 12-volt rail (without a 240VA limit) can transfer 100% of the 12-volt output from the PSU to the computer, while a multi-rail 12-volt design has distribution losses of up to 30% of the power supply’s rating. Those losses occur because power literally gets “trapped” on under-utilized rails. For example, if the 12-volt rail that powers the CPU is rated for 17 amps and the CPU only uses 7A, the remaining 10A is unusable, since it is isolated from the rest of the system. Since the maximum current from any one 12-volt rail of a multiple-rail PSU is limited to 20 amps (240VA / 12 volts = 20 amps), PCs with high-performance components that draw over 20 amps from the same rail are subject to over-current shutdowns. With power requirements for multiple processors and graphics cards continuing to grow, the multiple-rail design, with its 240VA limit per rail, is basically obsolete. PC Power and Cooling is once again leading the industry. All of our power supplies now feature a large, single 12-volt rail. The design is favored by major processor and graphics companies, complies with EPS12V specs (the 240VA limit is not a requirement) and is approved by all major safety agencies such as UL and TUV.

EDIT: man I really need to stop overlooking things; it says on pc power and cooling's web site that the Silencer 750 Quad is Dual 8800 sertified.

Quote: Originally Posted by Spatha I hope your not talking about the Silencer 750 Quad

I was talking bout the OCZ